2 J 6 British Uredinece and Ustilaginece. 



Spores ovate or fusiform, apex generally rounded and thick- 

 ened, often subtruncate, pale brown, smooth, 45-55 X 18-20/^. 

 Pedicels not very long. 



Synonym. 

 Puccinia millefolii. Fckl, " Synib. Myc," p. 55. Cooke, 

 "Micro. Fungi," 4th edit., p. 207. 



Exsiccati. 

 Cooke, ii. d^. Vize, " Fungi Brit.," 2>Z- 



On Achillea millefoUiim. 

 August to October. 



Biology. — This species is, by both Winter and Schroter, united 

 with P. asteris; but I found that, by placing the promycelial spores of 

 P. millefolii on Aster tripoliian, no effect was produced. Neither did 

 a plant of Achillea, which was richly covered by the teleutospores and 

 planted close to two plants of Aster, so that the diseased foliage of the 

 former touched the latter, cause them to become diseased, although 

 they grew together for a period of two months. 



Puccinia cardui (nov. sp.). 



Teleutospores — Sori small, circinating, crowded and confluent in 

 large clusters, 3 or 4 mm. across, hypophyllous, long covered by 

 the epidermis ; spots pale on the opposite surface of the leaf. 

 Spores fusiform, subcylindrical, or clavate, markedly constricted, 

 smooth, pale brown, base attenuated, apex generally thickened 

 and rounded, 45-50 x 16-18/x. Pedicels pale brown, per- 

 sistent, as much as 50/x long. 



Syno7iyms. 



Puccinia sy^igenesiarum. Link. Johnst., " Flor. Berw.," vol. ii. 

 p. 97. Berk., " Eng. Flor.," vol. v. p. 365. Cooke, " Hdbk.," 

 p. 499 ; " Micro. Fungi," 4th edit., p. 206, t. iv. figs. 63, 64. 



Puccinia cirsii, Fckl. Exs. No. 340 (?). 



On Carduus lanceolatus, crispus. 

 August to October. 



Biology. — This species has the appearance of a Leptopuccinia, 

 but it may belong to the previous group. It is clearly not the plant 



